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We propose a possibility theory-based approach to the treatment of missing user preferences in skyline queries. To compensate this lack of knowledge, we show how a set of plausible preferences suitable for the current context can be derived either in a case-based reasoning manner, or using an extended possibilistic logic setting. Uncertain dominance relationships are defined in a possibilistic way...
To tackle the capability of a data schema of bearing information, a model for the definition and exploitation of what we call the 'Information Bearing Capability' of a database (IBC Model for short) model has been proposed. In this paper, we present the notion of IBC with a brief justification. We then describe the IBC model with a diagram and present a set of inference rules for reasoning about information...
In current times, information system is a key part of the infrastructure for enterprises to run business. The efficiency and agility of the systems are vitally important for enterprises to survive. Business rule approach is a relevant new technique and can be used to assist enterprises to achieve business agility. This paper introduces briefly the concepts relating to business rule management techniques,...
Nowadays, there are many technologies supporting object-relational mapping (ORM) for J2EE technology. Based on different persistence mechanisms, this article compares three methods of database accessing in performance, easy programming, and portability. The testing results indicate it would increase management efficiency and performance when combining both Hibernate and Spring frameworks. With the...
A Public data platform uses the experience of enterprise information integration for reference. It can provide data integration interfaces for existing business information systems. The interfaces are used for data conversion. Beijing University of Civil Engineering and Architecture has developed more than a dozen information systems for all teachers and students. Through research of requirement analysis,...
To deal with the problem of many-answers returned from an E-commerce Web database in response to an approximate query, this paper proposes a novel approach to rank the approximate query results. Based on the database workload, we speculate how much the user cares about each attribute and assign a corresponding weight to it. Then, based on the similarity of different attribute values, a satisfaction...
XBRL (extensible Business Reporting Language) is an XML based standard for electronic data exchange and communication of business financial documents and reports among government bodies, regulators, financial institutions and reporting entities. In this paper, we analyze the XBRL model from a perspective of data management to show why XBRL has created a new emerging vertical domain of database applications...
MaxStream is a federated stream processing system that seamlessly integrates multiple autonomous and heterogeneous Stream Processing Engines (SPEs) and databases. In this paper, we propose to demonstrate the key features of MaxStream using two application scenarios, namely the Sales Map & Spikes business monitoring scenario and the Linear Road Benchmark, each with a different set of requirements...
Database Management Systems (DBMSs) are often required to simultaneously process multiple diverse workloads while enforcing business policies that govern workload performance. Workload control mechanisms such as admission control, query scheduling, and workload execution control serve to ensure that such policies are enforced and that individual workload goals are met. Query throttling can be used...
Supermarket has always considered as a good place when people want to purchase all kinds of daily goods. But it is too big to fast lookup the stuffs which happen to be the wanted. So, we provide the product recommendation mechanism with intelligent agents for those persons who can utilize it to swiftly and efficiently find the merchandizes what they want. We combine the RFID technology and mobile...
With the rapid development of mobile communication and computer technology, the SMS (short messaging service) has become one of the most convenient information query and answer methods and an ideal platform for further development. As one of the direction, the LSMS (library SMS), can be easily facilitated these open platform due to its low-cost, easily deployment, scalability, and security. In this...
With the development of the grid technology used in business field, it becomes more and more important to preserve privacy in information sharing field. This paper proposes a privacy-preserving query middleware PPQM based on credible third party in grid database, and fulfill privacy-preserving checking algorithm in PPQM to make privacy-preserving optimization of query plan before query assignment,...
Evaluating the performance of any organization is an essential part for overcoming their weaknesses. Customer is always on prior for finding and assessing the company's performance. They are always respectable for every organization. In this paper we first examine the Customer Relationship Management (CRM), especially customer behaviour and customer profiling. Then we describe the general overview...
Voice search or 411-service is the task that finds a ranked set of directory listings that match a spoken query, where the target entries in the listing database and the spoken query may differ moderately in their syntactic form. While the conventional paradigm uses a two-box input (location + name), a single-box paradigm to voice search can allow users to provide all the information in a single utterance,...
The identification of new useful patterns in data is a core process for intelligent systems. Information overflow is directly related to this problem. In this work we propose a knowledge discovery methodology to retrieve useful and novel information from raw data stored in a DBMS. We used ALSDB, a database that has been built suitably to access structured information obtained from the questionnaires...
Complex ad hoc join queries over enterprise databases are commonly used by business data analysts to understand and analyze a variety of enterprise-wide processes. However, effectively formulating such queries is a challenging task for human users, especially over databases that have large, heterogeneous schemas. In this paper, we propose a novel approach to automatically create join query recommendations...
MapReduce is Google's programming model for easy development of scalable parallel applications which process huge quantity of data on many clusters. Due to its conveniency and efficiency, MapReduce is used in various applications (e.g., Web search services and online analytical processing). However, there are only few good benchmarks to evaluate MapReduce implementations by realistic testsets. In...
Business houses are investing heavily on new generation databases so as to gain competitive edge. As with any development project, a data warehouse also needs testing. The complexity and size of data warehouse systems make comprehensive testing both "more difficult and more necessary". The fact, queries that perform satisfactorily on small datasets may fail miserably in the real life environment...
This paper proposed an ontology-supported portal architecture: OntoPortal, which can integrate both internal components ontology-supported crawler and classifier to concern both mechanisms of precise searching and fast query of portals. The preliminarily experimental outcomes proved the technology proposed in this paper to be able to really up-rise the precision, recall rates of webpage searching,...
Up-to-date data is of immense importance for operational reporting. Global enterprises require such a high throughput during daily operations that reporting systems had to be separated from the transactional system to avoid inhibiting performance. These architectures, however, do not provide the required reporting flexibility as the data set is a pre-defined subset of the actual data and updated only...
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